Kadapa vs Purnia
Side-by-side air quality comparison between Kadapa and Purnia.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Kadapa | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 6.00 | 105.90 |
| PM10(µg/m³) | 7.60 | 109.00 |
| NO₂(µg/m³) | 6.90 | 25.20 |
| SO₂(µg/m³) | 4.50 | 20.10 |
| O₃(µg/m³) | 56.00 | 67.00 |
| CO(µg/m³) | 179.00 | 707.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kadapa averaged an AQI of 62 while Purnia averaged 133 — a 71-point (115%) gap, with Purnia the more polluted and Kadapa the cleaner of the two. On 398 days when both cities reported, Kadapa was cleaner on 361 of them; the average daily gap was 99 AQI points.
Seasonality & days
Kadapa peaks in February, while Purnia peaks in January. Kadapa logged 0% Severe days and 87.80000000000001% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Kadapa 72 days, Purnia 14 days.
Year-over-year progress
Kadapa has improved by 6 AQI points (8.8%) from 2023 to 2024; Purnia has improved by 163 AQI points (55.1%) over the same window. The worst recorded day for Kadapa reached AQI 260 at Yerramukkapalli (APPCB) on 2024-12-11; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Kadapa spans 1 CPCB stations with a 0-point spread (min 65, max 65); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Kadapa has better air quality with an AQI of 10 compared to Purnia's 253. That's a significant difference of 243 points.